SCOPE AND OBJECTIVES
The 4th Polish Congress of Mechanics (PCM) continues the tradition of scientific meetings on Mechanics, initiated around 12 years ago during the 1st PCM in Warsaw. The Congress presents the current state of the art research in all disciplines of classical and quantum mechanics, solid and fluid mechanics, computational mechanics, applied mathematics and physics, as well as structural mechanics and engineering. The 23rd International Conference on Computer Methods in Mechanics (CMM) continues the 46-years old series of conferences dedicated to numerical methods and their applications in the mechanics-based problems. The scientific meetings, organized biannually since 1973, provide a forum for presentation and discussion of new ideas referring to theoretical background and practical applications of computational mechanics.